GMAT Sentence Correction (SC) | Re: While the thorns of all roses are protective, dissuading

While the thorns of all roses are protective, dissuading predators from feeding on the flowers’ blooms, unlike roses that grow in temperate climates, though, the thorns of desert roses also serve as reservoirs for water to forestall the ever-present threat of dehydration.

A- While the thorns of all roses are protective, dissuading predators from feeding on the flowers’ blooms, unlike roses
B- All roses’ protective thorns dissuade predators from feeding on their blooms; unlike those
C- The